A team of scientists from the University of Singapore has announced the creation of a prototype energy-harvesting device that draws usable electricity seemingly out of thin air. Designed to leverage nanoscale spin rectifier technology to capture what the device’s inventors term “waste RF” signals that exist in the air due to Wi-Fi, Bluetooth, 5G, and traditional radio signals, the novel energy harvesting system can convert those signals into enough usable direct current (DC) electrical energy. Similar RF energy harvesting technologies have been developed in recent years, including one invented by researchers from the University of South Florida. However, the team...
